fixing speed

einhander/einhander.lua

@@ -13,6 +13,8 @@
 seed=12345
 player={
 	x=20, y=50,
+    vx=0, vy=0,
+    speed=1.5,
     inv=0,
     show=1,
 	fire=0,
@@ -219,7 +221,7 @@ function drawPlayer()
                     local randFactor = math.random(10,100)
                     local spawnOffsetY = 1
 
-                    local lineStart = math.random(player.x+20, 260)
+                    local lineStart = math.random(player.x//1+20, 260)
                     if player.gun_down then
                         spawnOffsetY = 18
                         -- vulcan tilts downward so we get to do trig! yay!
@@ -337,26 +339,35 @@ function drawDebug()
 end
 
 function update()
-    if btn(0) then
-        if player.y > 0 then
-            player.y=player.y-2
-        end
+	player.vx = 0
+	player.vy = 0
+	if btn(0) then
+		player.vy=-player.speed
 	end
-    if btn(1) then
-        if player.y < 120 then
-            player.y=player.y+2
-        end
+	if btn(1) then
+		player.vy=player.speed
 	end
-    if btn(2) then
-        if player.x > 1 then
-            player.x=player.x-2
-        end
+	if btn(2) then
+		player.vx=-player.speed
 	end
 	if btn(3) then
-        if player.x < 216 then
-            player.x=player.x+2
-        end
-    end
+		player.vx=player.speed
+	end
+
+    -- slow down diagonal movements
+	if player.vx * player.vy ~= 0 then
+		player.vx = player.vx * 0.707
+		player.vy = player.vy * 0.707
+	end
+
+	player.x = player.x + player.vx
+	player.y = player.y + player.vy
+
+	if player.x < 5 then player.x = 5 end
+	if player.x > 220 then player.x = 220 end
+	if player.y < 5 then player.y = 5 end
+	if player.y > 128 then player.y = 128 end
+
     -- A: fire main gun
     if btn(4) then
         if player.fire == 0 then